Spotlight or other illuminator
US4232359A · kind A · utility
29Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 1979 |
| Grant date | Nov 4, 1980 |
| Priority date | — |
| Expiry date | Apr 9, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2131/406
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A spotlight includes a housing with an illumination source moveably mounted therein and a lens assembly moveably mounted therein. One or more lenses are mounted in the lens assembly, each in one of a plurality of predetermined positions. Independent movement of the source and lenses conveniently provides a variety of field angles, light outputs, or other illumination characteristics. A reflector, framing shutters, iris, pattern grids, and color filter gels may also be used as desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.